ocarina: Fix cur song display on tiny footer

It used to be "$TITLE $ARTIST".  I changed it to "$TITLE by $ARTIST"

ocarina/body/footer/tiny.py

@@ -49,5 +49,5 @@ def on_pause():
 load_attrs = ("title", "artist", "lenstr")
 def on_load():
 	title, artist, lenstr = libsaria.sources.get_attrs(*load_attrs)
-	now_playing.set_text("%s %s" % (title, artist))
+	now_playing.set_text("%s by %s" % (title, artist))
 	duration.set_text(" / %s" % lenstr)